What is this?
zxhproj (doxygen html) is a medical image computing platform, being developed and maintained by Xiahai Zhuang since 2004. Based on it, several image registration and segmentation tools have been developed, such as cardiac segmentation, locally affine registration method (LARM), spatially encoded mutual information (SEMI), as well as other image/vector field processing tools. The tools work with nifty (nii) and gipl short int data formats.

Disclaimer:
The tools released are for research purpose ONLY and not free from bugs, thus should NOT be used in any clinical related situations. Any usage is entirely at your own risk.

Download:

Here latest download from BaiDu, OR OneDrive, below help and old download

tools	binary (executable) without argument or with argument -H (in detail) will give the usage of the tool
zxhsemi/zxhffd (paper)	nonrigid registration - spatially encoded mutual information (SEMI) using free-form deformations, e.g.: zxhsemi -test target.nii -ref source.nii -o output -Reg 3 -steps -50 -50 -20 -sub 4 4 4 -sub 4 4 4 -sub 2 2 2 -semiradius 60 30 15 -ffd 40 40 40 -ffd 20 20 20 -ffd 10 10 10 -bending 0.01 0.005 0.001 OR diffeomorphism without bending energy (concatenation scheme, same for zxhffd): zxhsemi -test target.nii -ref source.nii -o output -Reg 3 -steps -50 -50 -20 -sub 4 4 4 -sub 4 4 4 -sub 2 2 2 -semiradius 60 30 15 -ffd 40 40 40 -ffd 20 20 20 -ffd 10 10 10
	nonrigid registration - using other similarities, including spatially encoded mutual information (-semi), (normalized) mutual information (-nmi/-mi), cross correlation (-cc), sum square difference (-ssd), e.g.: zxhffd -test target.nii -ref source.nii -o output -Reg 3 -sub 4 4 4 -sub 4 4 4 -sub 2 2 2 -ffd 40 40 40 -ffd 20 20 20 -ffd 10 10 10 -bending 0.01 0.005 0.001 -cc
zxhlarm/zxhclasslarm (paper)	locally affine registration method, LARM, e.g.: zxhlarm -test target.nii -ref source.nii -o output -localmatrix 3 -localregion localregion1.nii localregion2.nii localregion3.nii -Reg 5 -sub 4 4 4 -sub 4 4 4 -sub 3 3 3 -sub 3 3 3 -sub 2 2 2 -length 1 1 0.5 0.5 0.3 For cardiac, use option -heart and resample images into 2x2x2 mm using zxhtransform (e.g.: zxhtransform originalimage.nii -o saveimage.nii -resave -spacing 2 2 2 -bspline)
zxhdraw (paper)	invert displacement using Dynamic Resampling And distance Weighting interpolation, DRAW, e.g.: zxhdraw refimage.nii -o saveinversedisplace -n 1 -d displace_x.nii displace_y.nii displace_z.nii -inv 1
zxhreg	rigid, similarity (scale), affine registration, e.g.: zxhreg -test target.nii -ref source.nii -o output -pre 12 -pre 12: pre-align center of two images; -pre 13: pre-align gray level center of two images;
zxhcmrsc (paper)	cardiac MRI, cine short-axis and long-axis shift correction
zxhtransform	transform source image to target space using registration results/transformations
zxhtransformvector	compute transformation fields into some thing
zxhimageop	operations on images
zxhimageinfo	image info, convert to float/short int image

Copyright:
zxhproj, version 2.2 (c) 2004-2011 ZHUANG, XiaHai (xiahai.zhuang@gmail.com). All rights reserved.